2022~

• The 9th Goesan County Council opened (8 council members)
• Council Size:

  7 members from electorial districts (3 from Ga, 2 from Na, 2 from Da), 1 proportional representative

2018~2022

• The 8th Goesan County Council opened (8 council members)
• Council Size:

  7 members from electorial districts (3 from Ga, 2 from Na, 2 from Da), 1 proportional representative

2014~2018

• The 7th Goesan County Council opened (8 council members)
• Council Size:

  7 members from electorial districts (3 from Ga, 2 from Na, 2 from Da), 1 proportional representative

2010~2014

• The 6th Goesan County Council opened (8 council members)
• Ordinance on the Size of City and County Councils in Chungcheongbuk-do amended (2010. 3. 29)
• Council Size:

  7 members from electorial districts (3 from Ga, 2 from Na, 2 from Da), 1 proportional representative

2006~2010

• The 5th Goesan County Council opened (8 council members)
• Ordinance on the Size of City and County Councils in Chungcheongbuk-do amended (Jan 13, 2006)
• Council Size:

  7 members from electorial districts (2 from Ga, 2 from Na, 3 from Da), 1 proportional representative

2002~2006

• The 4th Goesan County Council opened (13 council members)
• Aug 30, 2003. Council size changed due to the establishment of Jeungpyeong-gun (11)
• Electoral Districts:

  1 eup, 10 myeon (Jeungpyeong-eup and Doan-myeon separated)

1998~2002

• The 3rd Goesan County Council opened (13 council members)

1995~1998

• The 2nd Goesan County Council opened (14 council members)

1991~1995

• The 1st Goesan County Council opened (14 council members)
• Electoral Districts:

  2 eup, 11 myeon (2 members from Jeungpyeong-eup)